Wall telephone set



FIG. 1 is a perspective front view of a wall telephone set showing my design;

FIG. 2 is a rear view of the wall telephone set;

FIG. 3 is a view from one side of the wall telephone set;

FIG. 4 is a view from the opposite side of the wall telephone set; and

FIG. 5 is a bottom plan view of the wall telephone set. 

The ornamental design for a wall telephone set, as shown. 